driver: created program skeleton.

2 files changed, 177 insertions, 0 deletions

diff --git a/include/treebnf/treebnf.h b/include/treebnf/treebnf.h
new file mode 100644
index 0000000..c10f115
--- /dev/null
+++ b/include/treebnf/treebnf.h
@@ -0,0 +1,142 @@
+#ifndef TREEBNF_H
+#define TREEBNF_H
+
+#include <fcntl.h>
+#include <stdint.h>
+#include <stddef.h>
+
+#include "treebnf_api.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* pre-alpha */
+#ifndef TBNF_APP
+#ifndef TBNF_PRE_ALPHA
+#error  libtreebnf: pre-alpha: ABI is not final!
+#error  to use the library, please pass -DTBNF_PRE_ALPHA to the compiler.
+#endif
+#endif
+
+/* status codes */
+#define TBNF_OK				0x00
+#define TBNF_USAGE			0x01
+#define TBNF_ERROR			0x02
+
+/* driver flags */
+#define TBNF_DRIVER_XFLAG(x)		((uint64_t)(x) << 32)
+
+#define TBNF_DRIVER_VERBOSITY_NONE	0x0000
+#define TBNF_DRIVER_VERBOSITY_ERRORS	0x0001
+#define TBNF_DRIVER_VERBOSITY_STATUS	0x0002
+#define TBNF_DRIVER_VERBOSITY_USAGE	0x0004
+#define TBNF_DRIVER_CLONE_VECTOR	0x0008
+
+#define TBNF_DRIVER_VERSION		0x0010
+
+#define TBNF_DRIVER_ANNOTATE_ALWAYS	0x10000000
+#define TBNF_DRIVER_ANNOTATE_NEVER	0x20000000
+#define TBNF_DRIVER_ANNOTATE_FULL	0x40000000
+
+/* error flags */
+#define TBNF_ERROR_TOP_LEVEL		0x0001
+#define TBNF_ERROR_NESTED		0x0002
+#define TBNF_ERROR_CHILD		0x0004
+#define TBNF_ERROR_CUSTOM		0x0008
+
+enum tbnf_custom_error {
+	TBNF_ERR_FLOW_ERROR,
+	TBNF_ERR_NULL_CONTEXT,
+	TBNF_ERR_IMAGE_SIZE_ZERO,
+};
+
+struct tbnf_raw_input {
+	void *          map_addr;
+	size_t          map_size;
+};
+
+struct tbnf_source_version {
+	int		major;
+	int		minor;
+	int		revision;
+	const char *	commit;
+};
+
+struct tbnf_fd_ctx {
+	int		fdin;
+	int		fdout;
+	int		fderr;
+	int		fdlog;
+	int		fdcwd;
+	int		fddst;
+};
+
+struct tbnf_error_info {
+	const struct tbnf_driver_ctx *	edctx;
+	int				esyscode;
+	int				elibcode;
+	const char *			efunction;
+	int				eline;
+	unsigned			eflags;
+	void *				eany;
+};
+
+struct tbnf_common_ctx {
+	uint64_t			drvflags;
+	uint64_t			actflags;
+	uint64_t			fmtflags;
+};
+
+struct tbnf_driver_ctx {
+	const char *			program;
+	const char *			module;
+	const char **			units;
+	const struct tbnf_common_ctx *	cctx;
+	struct tbnf_error_info **	errv;
+	void *				any;
+};
+
+struct tbnf_unit_ctx {
+	const char * const *		path;
+	const struct tbnf_raw_input *	map;
+	void *				any;
+};
+
+/* driver api */
+tbnf_api int  tbnf_lib_get_driver_ctx   (char ** argv, char ** envp, uint64_t flags,
+                                         const struct tbnf_fd_ctx *,
+                                         struct tbnf_driver_ctx **);
+
+tbnf_api void tbnf_lib_free_driver_ctx  (struct tbnf_driver_ctx *);
+
+tbnf_api int  tbnf_lib_get_unit_ctx     (const struct tbnf_driver_ctx *, const char * path,
+                                         struct tbnf_unit_ctx **);
+
+tbnf_api void tbnf_lib_free_unit_ctx    (struct tbnf_unit_ctx *);
+
+tbnf_api int  tbnf_lib_get_driver_fdctx (const struct tbnf_driver_ctx *, struct tbnf_fd_ctx *);
+
+tbnf_api int  tbnf_lib_set_driver_fdctx (struct tbnf_driver_ctx *, const struct tbnf_fd_ctx *);
+
+tbnf_api int  tbnf_lib_map_raw_input    (const struct tbnf_driver_ctx *,
+                                         int fd, const char * path, int prot,
+                                         struct tbnf_raw_input *);
+
+tbnf_api int  tbnf_lib_unmap_raw_input  (struct tbnf_raw_input *);
+
+/* utility api */
+tbnf_api int  tbnf_main                 (char **, char **,
+                                         const struct tbnf_fd_ctx *);
+
+tbnf_api int  tbnf_output_error_vector  (const struct tbnf_driver_ctx *);
+tbnf_api int  tbnf_output_error_record  (const struct tbnf_driver_ctx *, const struct tbnf_error_info *);
+
+/* package info */
+tbnf_api const struct tbnf_source_version * tbnf_api_source_version(void);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
diff --git a/include/treebnf/treebnf_api.h b/include/treebnf/treebnf_api.h
new file mode 100644
index 0000000..ca55079
--- /dev/null
+++ b/include/treebnf/treebnf_api.h
@@ -0,0 +1,35 @@
+#ifndef TREEBNF_API_H
+#define TREEBNF_API_H
+
+#include <limits.h>
+
+/* tbnf_export */
+#if	defined(__dllexport)
+#define tbnf_export __dllexport
+#else
+#define tbnf_export
+#endif
+
+/* tbnf_import */
+#if	defined(__dllimport)
+#define tbnf_import __dllimport
+#else
+#define tbnf_import
+#endif
+
+/* tbnf_api */
+#ifndef TBNF_APP
+#if     defined (TBNF_EXPORT)
+#define tbnf_api tbnf_export
+#elif   defined (TBNF_IMPORT)
+#define tbnf_api tbnf_import
+#elif   defined (TBNF_STATIC)
+#define tbnf_api
+#else
+#define tbnf_api
+#endif
+#else
+#define tbnf_api
+#endif
+
+#endif